20911851

素因数分解:

$3^5\times {\mathrm{47}}^1\times {\mathrm{1831}}^1$

素因数の和:1893

約数の個数: 24

約数和(自身を含む): 32008704

約数和(自身を除く): 11096853

約数列:

[1, 3, 9, 27, 47, 81, 141, 243, 423, 1269, 1831, 3807, 5493, 11421, 16479, 49437, 86057, 148311, 258171, 444933, 774513, 2323539, 6970617, 20911851]

約数ペア:

[(1, 20911851), (3, 6970617), (9, 2323539), (27, 774513), (47, 444933), (81, 258171), (141, 148311), (243, 86057), (423, 49437), (1269, 16479), (1831, 11421), (3807, 5493)]